2024 Aluminum Hangers
Paragon Machine Works has always offered replaceable derailleur hangers from two alloys, 6061 and 7075. 6061 is corrosion resistant, will bend before it breaks, may be bent back into position (depending on the severity of the bend), and is inexpensive. 7075 is a far stronger material, and will not bend when subject to a blow that will bend 6061. However, 7075 will fail catastrophically (break) when pushed hard enough. 7075 must be anodized to resist corrosion, and is more expensive than 6061.
Having two hangers has led to confusion among builders and riders as to which is the preferred material for their riding style. It also forces us to manufacture, anodize, and inventory two hangers. In an effort to supply a better part to our customers, and reduce our manufacturing and administrative work, we are now offering hangers made from 2024 aluminum. This alloy is a compromise between 6061 and 7075, offering the best qualities of both materials.
2024 hangers will be available as our old stock sells out. Once the remaining inventory of 6061 and 7075 is sold, we will only stock 2024. They will be available black and clear anodized, and in short and long lengths.
Please note: A replaceable hanger may not save the derailleur when the hanger fails. The goal is to minimize damage to the frame and be quickly replaced by the rider. Always carry a spare, and if you hear ANY abnormal noises or shifting from the derailleur, stop and inspect! Hangers may be bent from crashes, impacts, laying the bike down on the drive side, and Derby.
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Stainless Steel Flat Mount Dropouts
Our 58 (DR1085) and 70 degree (DR1086) flat mount dropout assemblies have been specifically designed to work with flat mount brake calipers. The assemblies consist of three pieces: right and left 17/4 stainless steel frame components and a matching 17/4 stainless steel caliper mount (BK1070). The caliper mount must be brazed or welded to the dropout by the builder; locating features are integral, no fixture is needed for location. The brake mount is 10 mm thick, use the appropriate length mounting bolt. The axle hole is 12 mm.
We have added 1-1/4" diameter x 25.4 mm wide options to our selection of steel (DR2092) and titanium (DR0092) Syntace dropouts that are compatible with the Syntace X-12 System. The right side frame component accommodates a concentric or eccentric threaded insert, allowing the wheel to be centered in the frame following any inconsistencies in frame construction. The complete assembly for the Syntace X-12 System requires a right side hanger with screw, skewer, and threaded insert that are available for purchase separately here.
Aluminum Cable Clamp
We have added a new single cable clamp to our line up, CC4112. Made from black anodized 6061 aluminum, it has a 5.2 mm wide guide for housing, a 5.1 mm mounting hole, and clearance to fit over a water bottle boss. Its low profile allows for the attachment of a water bottle cage on top of the cable clamp.
Steel Front Dropout
Our line of front dropouts now includes a 4130 steel dropout that is compatible with a 15 mm front skewer, DR2057. The right side has an integral M15 x 1.5 thread.
Downie River Trail Daze, September 17th!
You are invited to join Paragon Machine Works, Paul Component Engineering and the Sierra Buttes Trail Stewardship on Saturday, September 17th for a day of great riding, hiking, and giving back to the trails of Downieville. Through the adoption of the Downie River Trail in 2015, and their support of the Sierra Buttes Trail Stewardship and the Downieville Trail System, Paul and Paragon remain committed to building and maintaining quality trails and their accessibility to future generations.
- 8:00 am - Meet at Yuba Expeditions in downtown Downieville, CA. Coffee and bagels will be provided as well as a lunch spread so you can pack a lunch.
- 8:30 am - After a briefing with the crew about the planned trail work, head out on your bike or moto to the bridge on the Downie River Trail. The trail crew will have tools, safety eqipment, snacks and beverages for you there.
- 3:00 pm - After a day of biking, hiking and digging in the dirt, head back to Yuba Expeditions for a volunteer appreciation BBQ. We'll be serving up burgers, Cosbey's magic beans and delicious brews from the Brewing Lair of the Lost Sierra.
What to bring: water, sunscreen, pack, close toe shoes, work gloves, eye protection (sunglasses).
What's provided: All food, tools, and safety equipment.
All volunteers will receive a custom titanium bottle opener courtesy of Paragon Machine Works (after working a full day and while supplies last).
Volunteers must sign a waiver prior to starting work. No experience is needed to participate, all are welcome!
We'd like to welcome Jonkany Vargas to our staff. Jonkany is our "DoAll" guy, our new Machine Shop Assistant who helps to keep our shop running smoothly. Jonkany's love of machine work motivated him to stop by our shop and ask for work, and fortunately for us we had an opening. He does everything from tumbling and cleaning parts to operating machines. He got his certification as a Technical Operator of Machines and Tools at a trade school in Mexico, and gained valuable experience on CNC machinery while working in a machine shop there. He looks forward to working full time on our machines.
For the months of July and August we will support a bicycle advocacy group that is in our back yard, Rich City Rides. Located in Richmond, CA, Rich City Rides formed in August 2012 to use cycling as a method to increase healthy activity, community skill building, build businesses and create opportunities for the most vulnerable members of marginalized communities. Check out all the great activities that they organize to support their local community on their Facebook page, and show your support by visiting them at the Rich City Rides Community Shop at 1500 MacDonald Ave.
We appreciate your support!
Total amount donated to date: $18,014
• Sonoma County Bicycle Coalition • National Interscholastic Cycling Association • Friends of China Camp • SF Urban Riders (McLaren Bike Park) • Bike East Bay • Friends of Tamarancho • In Memory of Tom Polermo • Marin Museum of Bicycling • The Friends of Stafford Lake Bike Park • VetBikes.org • Bay Area Outreach & Recreation Program • Charlie Cunningham Medical Fund • Gearing Up • Trips for Kids • One Tam • PB SOC • Chako Pit Bull Rescue and Advocacy
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